| 发明名称 |
Process for the preparation of an olefinic product comprising ethylene and/or propylene |
| 摘要 |
An oxygenate to olefins (OTO) process, comprising the steps of: (i) purifying an oxygenate feedstream comprising one or more ionic contaminants by contacting the feedstream with a membrane, resulting in the formation of a retentate and a permeate separated by the membrane, which permeate is a purified oxygenate stream which contains a lower ionic contaminant concentration than the original oxygenate feedstream; (ii) introducing the purified oxygenate stream into an oxygenate to olefins reaction zone; and (iii) contacting the purified oxygenate stream with a molecular sieve catalyst in the oxygenate to olefins reaction zone to form a product stream comprising olefins. |
| 申请公布号 |
US8895792(B2) |
申请公布日期 |
2014.11.25 |
| 申请号 |
US201314136047 |
申请日期 |
2013.12.20 |
| 申请人 |
Shell Oil Company |
发明人 |
Sadasivan Vijayakumari Sivakumar;Van Westrenen Jeroen |
| 分类号 |
C07C41/58;C07C29/76;C07C1/22;C07C11/04;C07C11/06;C07C1/20;C07C29/74;C07C31/04 |
主分类号 |
C07C41/58 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An oxygenate to olefins (OTO) process, comprising the steps of:
(i) purifying an oxygenate feedstream comprising one or more ionic contaminants by contacting the feedstream with a membrane, resulting in the formation of a retentate and a permeate separated by the membrane, which permeate is a purified oxygenate stream which contains a lower ionic contaminant concentration than the original oxygenate feedstream; (ii) introducing the purified oxygenate stream into an oxygenate to olefins reaction zone; and (iii) contacting the purified oxygenate stream with a molecular sieve catalyst in the oxygenate to olefins reaction zone to form a product stream comprising olefins. |
| 地址 |
Houston TX US |
